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 MYRIAPODA southern counties. Occurs also in the western countries of central Europe. 15. Brachydesmus superus, Latzel. Die Myriap. (Ester. Ungar. Man. ii. 130 (1884). Finchingfield, Walton-on-the-Nazc. CHORDEUMIDJE Millipedes with typically thirty segments furnished dorsally with six symmetrically disposed bristles, without scent-glands and usually keeled like those of the Polydesmidse. 16. Atractosoma polydesmoiJes, Leach. Zool. Misc. iii. 36 (1817). Brentwood, Finchingfield, Warley. This species, with its large keels, closely resembles an elongate Polydesmus. IVLIDJE Millipedes in which the body consists of a large but variable number of segments, each of which, excepting the most anterior, is furnished with scent glands, but without the keels characteristic of the Polydesmidae. 17. lulus sabulosus, Linn. Syst. Nat. ed. 10, P- 639 (1758). Walton-on-the-Naze, Chelmsford, Widford. A large species with acute caudal prolonga- tion and a pair of yellow longitudinal dorsal stripes. 1 8. lulus niger. Leach. Zool. Mix, iii. 34 (1817). Warley. Common in England and in the western countries of the continent. As large as the preceding but slenderer, without dorsal bands, and with the anterior portion of the segments transversely grooved. 19. lulus ligulifer, Latzel. Berl. Ent. Ztits. xxxvi. 152 (1891). Stock, Warley. A small black -tailed species, without stripes and without transverse grooves on the segments. Fairly common in central Europe and no doubt also in England, though not previously recorded as British. 20. lulus pilosus, Newport. Ann. Mag. Nat. Hist. xi. 316 (1842). Warley. Very nearly allied to /. ligulifer, and prob- ably often confounded with that species so far as the females are concerned. The males of the two are easily distinguishable by the form of the first pair of legs. 21. lulus punctatuiy Leach. Zool. Afiic. iii. Warley. A yellowish-brown species, with a blunt expanded caudal process and a row of dark spots on each side of the body. Found in rotten wood. Common throughout England and on the continent. 22. lulus teutonicus, Pocock. Ann. Mag. Nat. Hist. (7), vi. 206 (1900). Stock, Warley, Colchester, Great Baddow, Dagenham. This species, which is common at least in the south-eastern counties of England and in the western countries of Europe, has errone- ously passed until recently under the name lulus londinensis. With exception of the lat- ter, which has never been discovered since Leach's time, /. teutonicus is the largest tailless form of this genus met with in Britain. lulus londinensis, Leach (TV. Linn. Sac. xi. 378 [1815]), described from the environs of London, may prove to belong to the fauna of Essex. 23. Blaniului guttulatus, Bosc. Bull. Sac. Philom. p. 12 (1792). Finchingfield. A long and slender eyeless species, with the head and anterior segments pale, and a line of blood-red spots on each side of the body. POLYXENID^: Syst. Nat. ed. 24. Polyxenus lagurus. Linn. '0, P- 637 (1758). Brightlingsea. This species is commonly found beneath the loose bark of old fences or tree trunks. The examples above recorded however were collected beneath weeds upon the beach. In spite, however, of the peculiarity of the habitat, they seem to belong to P. lagurus, the common European species of the genus. 195